2FeCl3 + 3Na2S = 6NaCl + Fe2S3↓
ZnCl2 + Na2S = 2NaCl + ZnS↓
2AlCl3 + 3Na2S + 6H2O = 6NaCl + 3H2S↑ + 2Al(OH)3↓
MgCl2 + Na2S = 2NaCl + MgS↓
FeCl2 + Na2S = 2NaCl + FeS↓
CuCl2 + Na2S = 2NaCl + CuS↓
Na2S + Cl2 = 2NaCl + S↓
CdCl2 + Na2S = 2NaCl + CdS↓
2HCl + Na2S = 2NaCl + H2S↑
BaCl2 + Na2S = 2NaCl + BaS↓